Kagee
commented
3 years ago While I concurr that the RFC appears to not exclude both 0&1, as I read them, if you have 1, setting 0 will not give you any more reports, as a report that has all non-pass, will match the any non-pass of the 1-setting?
We have a record that has the following:
fo=0:1:d:s;
This causes DMARC to be invalid
"error" : "fo DMARC tag options 0 and 1 are mutually exclusive"
From the RFC this is valid, you just want all permutations of the report:
0: Generate a DMARC failure report if all underlying authentication mechanisms fail to produce an aligned "pass" result.
1: Generate a DMARC failure report if any underlying authentication mechanism produced something other than an aligned "pass" result.